WO1999046424A1 - Electrode compacte pour traitement de surface par decharge - Google Patents

Electrode compacte pour traitement de surface par decharge Download PDF

Info

Publication number
WO1999046424A1
WO1999046424A1 PCT/JP1998/001007 JP9801007W WO9946424A1 WO 1999046424 A1 WO1999046424 A1 WO 1999046424A1 JP 9801007 W JP9801007 W JP 9801007W WO 9946424 A1 WO9946424 A1 WO 9946424A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
die
surface treatment
discharge surface
green compact
Prior art date
Application number
PCT/JP1998/001007
Other languages
English (en)
Japanese (ja)
Inventor
Tooru Inoue
Akihiro Goto
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to DE19882877T priority Critical patent/DE19882877B4/de
Priority to CNB988113333A priority patent/CN1170959C/zh
Priority to CH01202/00A priority patent/CH693846A5/de
Priority to KR1020007009838A priority patent/KR100362325B1/ko
Priority to JP2000535785A priority patent/JP3657880B2/ja
Priority to PCT/JP1998/001007 priority patent/WO1999046424A1/fr
Publication of WO1999046424A1 publication Critical patent/WO1999046424A1/fr
Priority to US09/548,433 priority patent/US6437278B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/04—Electrodes specially adapted therefor or their manufacture
    • B23H1/06—Electrode material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00

Definitions

  • the present invention relates to a green compact electrode for discharge surface treatment, and more particularly to a green compact electrode (discharge electrode) used in a discharge surface treatment for forming a hard film on a surface of a work.
  • a pulsed discharge is generated between the compacted electrode and the workpiece in a machining fluid such as electric discharge machining oil, and the discharge energy causes the electrode material or electrode material to be applied to the surface of the workpiece.
  • a discharge surface treatment method for forming a hard coating made of a substance such as a metal carbide such as TiC produced by reacting with a discharge energy is disclosed in Japanese Patent Application Laid-Open No. 9-198929. .
  • a green compact electrode utilizes the fact that metal powder such as Ti is loaded into a die and the metal powder is solidified by pressing and compressing the metal powder in the die with a pressing punch. And press molded.
  • the green compact electrode is manufactured by the electric discharge machining disclosed in Japanese Unexamined Patent Publication Nos. 56-125265 and 62-127484, even if metal powder is used. Unlike the electrodes used for sintering, the sintering is not performed, so the final electrode strength and electrical resistance are determined by the state at the time of completion of pressure molding. For the molding pressure, a pressure of about 5 tonf / cm 2 is required. If the molding pressure is lower than this, the strength of the resulting electrode is insufficient or the electric resistance of the electrode becomes extremely large, so that the electrode cannot be appropriately used as a compact electrode for discharge surface treatment.
  • the present invention has been made in order to solve the above-described problems, and has as its object to provide a compacted electrode for discharge surface treatment that can avoid defects in a manufacturing process, reduce the production yield, and provide a compacted electrode for discharge surface treatment. I have. Disclosure of the invention
  • a discharge is generated between a work and a green compact electrode formed by pressing a metal powder, a metal compound powder, or a ceramics powder added thereto, and an electrode material is formed on the work surface by the discharge energy.
  • a metal powder, a metal compound powder, or a ceramic powder is added to the powder. It is composed of a green compact electrode body obtained by press-molding the added material and a metal die used for press-molding the green compact electrode body, and the green compact electrode body is taken out from the die.
  • the present invention provides a green compact electrode for discharge surface treatment, which has a through-chamber structure in which the molding chamber of the die penetrates in a direction of inserting and removing a pressing punch. Therefore, when the die is reused, it is easier to remove the residue of the green compact electrode body from the molding chamber.
  • the present invention can provide a green compact electrode for discharge surface treatment, in which a molding chamber of the die has a through-chamber structure in which a central portion is narrowed.
  • the present invention can provide a green compact electrode for electric discharge surface treatment, wherein the molding chamber of the die has a penetrating channel structure having a pot-shaped taper shape.
  • the present invention can provide a discharge surface treatment green compact electrode in which a plurality of molding chambers are provided in one die, and the green compact electrode body is press-molded in each molding chamber. .
  • the green compact electrode body of one molding chamber can be used continuously.
  • the present invention can provide a green compact electrode for discharge surface treatment that can be attached to an electrode support portion with the die using the die as an electrode holder.
  • FIG. 1 is a structural view showing a green compact electrode for discharge surface treatment according to the present invention and a method of using the same.
  • FIGS. 2 (a) and (b) are green compact electrodes for discharge surface treatment according to the present invention.
  • FIG. 3 is a cross-sectional view showing a mold structure used for manufacturing a mold.
  • FIGS. 3, 4, and 5 are other molds used for manufacturing a green compact electrode for discharge surface treatment according to the present invention.
  • FIG. 6 is a cross-sectional view showing the structure, and FIG. 6 is a perspective view showing another embodiment of the green compact electrode for discharge surface treatment according to the present invention.
  • FIG. 1 shows a green compact electrode for discharge surface treatment according to the present invention and a method of using the same.
  • the green compact electrode for discharge surface treatment 10 is a compact green electrode body 11 formed by adding a metal powder or a metal compound powder or a ceramic powder to the powder, and a green compact electrode. It is composed of a metal die 12 used for pressure molding of the main body 11.
  • the green compact electrode body 11 is used for the discharge surface treatment by taking the die 12 like an electrode holder without taking it out of the die 12.
  • the green compact electrode 10 for electric discharge surface treatment is placed in a working tank 50 at a predetermined angle by a jig 51, and the green compact electrode is filled in the working fluid A filled in the working tank 50.
  • the main body 11 faces the drill electrode (work electrode) W to be subjected to the discharge surface treatment with a predetermined discharge gap, and the energy of the pulsed discharge causes the compact electrode body to be attached to the cutting surface of the drill electrode W.
  • the compacted electrode body 11 1 formed by pressing in the die 1 2 is used without removing the compacted electrode body 11 from the die 12, the compacted electrode body 1 1 is used in the manufacturing process. There is no cracking or chipping at all, and the production yield of the compact electrode for discharge surface treatment is improved.
  • the residue of the compacted electrode body 11 is expelled from the die 12 so that the die 12 is formed into a mold. Can be reused.
  • the compacting electrode 10 for discharge surface treatment can be attached to the jig (electrode supporting portion) 51 by using the die 12 as an electrode holder and the die 12, the compacted electrode body is used.
  • the jig 51 By directly attaching 11 to the jig 51, it is possible to prevent the mounting portion of the green compact electrode body 11 from being attached to the jig 51.
  • the compaction of the green compact electrode body 11 is performed as shown in FIG. Then, using a die 12 and a pressurizing punch 13, a metal powder, a metal compound powder, or a mixed powder B obtained by adding a ceramics powder to the powder or metal compound powder in the chamber 12 a of the die 12. It can be carried out by mounting and pressing this with a pressing punch 13.
  • the molding chamber 12 a of the die 12 in this case has a bottomed chamber structure having the same length as the axial length of the green compact electrode body 11. Further, as shown in FIG. 3, the molding chamber 12a of the die 12 may have a through-chamber structure penetrating in the direction of inserting and removing the pressing punch 13. When the forming chamber 12a of the die 12 has a through-chamber structure, the die 12 is used for pressure molding while being placed on the detachable die plate 14.
  • the operation of removing the residue of the green compact electrode body 11 from the die 12 after use can be easily performed by extrusion.
  • the molding chamber 12a of the die 12 has a through-chamber structure, as shown in FIG. 4, the molding chamber 12a is used to prevent the green compact electrode body 11 from falling off.
  • “a” may have a shape in which the central portion is narrowed (drum-shaped), or a pot-shaped tapered shape as shown in FIG. If the molding chamber 12a of the die 12 has a bowl-shaped tapered shape, the work of removing the residue of the green compact electrode body 11 from the die 12 after use by extrusion from the back side (large diameter side) It will be easy to do.
  • a plurality of molding chambers 12a are provided in the third die 12 and the green compact electrode body 11 is pressure-molded in each molding chamber 12a. Is also good.
  • the green compact electrode body 11 of one molding chamber 12a is used up, the green compact electrode body 11 of another molding chamber 12a can be used, and the die 12 needs to be replaced. Long-term continuous operation without electrode replacement is possible. Also, the required number of dies is smaller than in the case where one compacted electrode body 11 is attached to one die 12, and the die is not bulky.
  • the green compact electrode for discharge surface treatment according to the present invention is suitable for a discharge electrode used in discharge surface treatment for forming a hard coating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

L'invention concerne une électrode compacte pour traitement de surface par décharge, constituée d'une partie principale produite par compression d'une poudre de métal ou d'un composé métallique, ou par celle d'un mélange d'un métal ou d'un composé métallique et d'une poudre céramique, ainsi qu'une matrice métallique utilisée pour comprimer la poudre. La partie principale de l'électrode de poudre compacte n'est pas retirée de la matrice. De telles électrodes s'utilisent pour un traitement de surface par décharge.
PCT/JP1998/001007 1998-03-11 1998-03-11 Electrode compacte pour traitement de surface par decharge WO1999046424A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19882877T DE19882877B4 (de) 1998-03-11 1998-03-11 Verfahren zur Bearbeitung einer Oberfläche eines Werkstücks durch Entladung sowie Grünlingelektrode
CNB988113333A CN1170959C (zh) 1998-03-11 1998-03-11 放电表面处理用压粉体电极
CH01202/00A CH693846A5 (de) 1998-03-11 1998-03-11 Gronlingelektrode zur Oberflachenbehandlung durch Funkenerosion.
KR1020007009838A KR100362325B1 (ko) 1998-03-11 1998-03-11 방전 표면 처리용 압분체 전극
JP2000535785A JP3657880B2 (ja) 1998-03-11 1998-03-11 放電表面処理用圧粉体電極
PCT/JP1998/001007 WO1999046424A1 (fr) 1998-03-11 1998-03-11 Electrode compacte pour traitement de surface par decharge
US09/548,433 US6437278B1 (en) 1998-03-11 2000-04-12 Green compact electrode for discharge surface treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/001007 WO1999046424A1 (fr) 1998-03-11 1998-03-11 Electrode compacte pour traitement de surface par decharge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/548,433 Continuation US6437278B1 (en) 1998-03-11 2000-04-12 Green compact electrode for discharge surface treatment

Publications (1)

Publication Number Publication Date
WO1999046424A1 true WO1999046424A1 (fr) 1999-09-16

Family

ID=14207759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/001007 WO1999046424A1 (fr) 1998-03-11 1998-03-11 Electrode compacte pour traitement de surface par decharge

Country Status (7)

Country Link
US (1) US6437278B1 (fr)
JP (1) JP3657880B2 (fr)
KR (1) KR100362325B1 (fr)
CN (1) CN1170959C (fr)
CH (1) CH693846A5 (fr)
DE (1) DE19882877B4 (fr)
WO (1) WO1999046424A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1323820C (zh) * 2004-06-18 2007-07-04 武汉理工大学 功能陶瓷低电压放电压制成形方法
EP2255785A2 (fr) 2005-04-28 2010-12-01 Takeda Pharmaceutical Company Limited Préparation de type émulsion stable

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999058282A1 (fr) * 1998-05-13 1999-11-18 Mitsubishi Denki Kabushiki Kaisha Electrode de briquette verte pour traitement de surface par decharge, procede de production de cette electrode, procede de traitement de surface par decharge, dispositif permettant d'appliquer ce procede et procede de recyclage de l'electrode en briquette verte pour traitement de surface par decharge
CH695188A5 (de) * 1998-05-13 2006-01-13 Mitsubishi Electric Corp Elektrode fur Funkenerosionsoberflochenbehanlung, Verfahren zur Herstellung derselben, Verfahren zur Funkenerosionsoberflochenbehandlung und Vorrichtung hierfur.
JP3907948B2 (ja) * 1998-11-13 2007-04-18 三菱電機株式会社 金型の放電表面処理方法および金型放電表面処理用電極の製造方法および金型放電表面処理用電極
JP4307444B2 (ja) * 2002-09-24 2009-08-05 株式会社Ｉｈｉ 高温部材の擦動面のコーティング方法および高温部材と放電表面処理用電極
US9284647B2 (en) * 2002-09-24 2016-03-15 Mitsubishi Denki Kabushiki Kaisha Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
CA2483528C (fr) * 2002-10-09 2015-07-21 Ishikawajima-Harima Heavy Industries Co., Ltd. Element rotatif et procede d'enduction dudit element
WO2004108338A1 (fr) 2003-06-04 2004-12-16 Mitsubishi Denki Kabushiki Kaisha Ajutage pour un traitement de materiel, pointe de contact pour soudage, methode de fabrication de l'ajutage pour le traitement de materiel, et methode de fabrication de la pointe de contact pour soudage
CN100497736C (zh) * 2003-06-11 2009-06-10 三菱电机株式会社 放电表面处理方法及放电表面处理装置
US7713361B2 (en) * 2003-06-11 2010-05-11 Ishikawajima-Harima Heavy Industries Co., Ltd. Metal product producing method, metal product, metal component connecting method, and connection structure
EP2179808B8 (fr) * 2007-07-18 2015-01-07 IHI Corporation Procédé pour produire une électrode pour traitement de surface par décharge.
CN103406611B (zh) * 2013-08-08 2016-06-08 哈尔滨工业大学 一种适用于曲面绝缘陶瓷电火花加工的辅助电极
CN103692035B (zh) * 2013-12-19 2016-01-20 华南理工大学 一种对丝状金属材料进行放电加工的装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192380A (ja) * 1987-10-01 1989-04-11 Inoue Japax Res Inc マイクロ溶接方法
JPH01178379A (ja) * 1987-12-30 1989-07-14 Inoue Japax Res Inc マイクロ溶接方法
JPH09192937A (ja) * 1996-01-17 1997-07-29 Res Dev Corp Of Japan 液中放電による表面処理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296301A (en) * 1977-02-28 1981-10-20 Johnson Romain H Die forming method and machine
US4373127A (en) * 1980-02-06 1983-02-08 Minnesota Mining And Manufacturing Company EDM Electrodes
JPS602308A (ja) 1983-06-20 1985-01-08 初鹿野　清 セラミツク加工方法
JPH0665733B2 (ja) * 1985-11-26 1994-08-24 株式会社東芝 放電加工用電極材料およびその製造方法
JPH01115522A (ja) 1987-10-29 1989-05-08 Yasuaki Okuya 鋳物のバリ取り用金型を放電加工を利用して製造する方法
JP3376174B2 (ja) * 1995-07-04 2003-02-10 三菱電機株式会社 放電加工による表面処理方法および装置
JP3563203B2 (ja) * 1996-06-12 2004-09-08 独立行政法人 科学技術振興機構 放電加工による表面処理方法及びその装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192380A (ja) * 1987-10-01 1989-04-11 Inoue Japax Res Inc マイクロ溶接方法
JPH01178379A (ja) * 1987-12-30 1989-07-14 Inoue Japax Res Inc マイクロ溶接方法
JPH09192937A (ja) * 1996-01-17 1997-07-29 Res Dev Corp Of Japan 液中放電による表面処理方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1323820C (zh) * 2004-06-18 2007-07-04 武汉理工大学 功能陶瓷低电压放电压制成形方法
EP2255785A2 (fr) 2005-04-28 2010-12-01 Takeda Pharmaceutical Company Limited Préparation de type émulsion stable

Also Published As

Publication number Publication date
DE19882877T1 (de) 2001-06-21
CH693846A5 (de) 2004-03-15
KR20010041639A (ko) 2001-05-25
US6437278B1 (en) 2002-08-20
JP3657880B2 (ja) 2005-06-08
CN1170959C (zh) 2004-10-13
KR100362325B1 (ko) 2002-11-23
DE19882877B4 (de) 2005-11-03
CN1279731A (zh) 2001-01-10

Similar Documents

Publication Publication Date Title
WO1999046424A1 (fr) Electrode compacte pour traitement de surface par decharge
US6371746B1 (en) Method of electronic sintering method and mold for use in the method
DE3013943C2 (fr)
KR100398764B1 (ko) 방전 표면 처리용 압분체 전극 및 방전 표면 처리용압분체 전극의 제조 방법
KR20050025651A (ko) 선택적 소결 억제 방법을 이용한 금속 부품 제작
JP3907948B2 (ja) 金型の放電表面処理方法および金型放電表面処理用電極の製造方法および金型放電表面処理用電極
JP4483673B2 (ja) セラミック成形体の製造方法および製造装置
CA2291091A1 (fr) Machine a percussion et son procede pour la fabrication de pastilles
CN110961743A (zh) 加工深腔焊劈刀及其刀尖的工艺
WO2005081640A2 (fr) Procede de moulage de poudre metallique
JP2003305593A (ja) 粉末成形体の製造方法
EP1228856A3 (fr) Outil pour le compactage de poudre
JPH1017904A (ja) 通電焼結方法
RU82697U1 (ru) Заготовка для формования горячим прессованием изделия сложной формы
JPH01228730A (ja) セラミックス製ダイスの製造方法
WO2022095111A1 (fr) Procédé de fabrication de partie mandrin, partie mandrin et machine textile utilisant ladite partie mandrin
RU2156674C2 (ru) Пресс-форма для прессования порошка
RU2309816C2 (ru) Способ изготовления режущих элементов из сверхтвердых материалов
KR101024108B1 (ko) 다이아몬드-레진 프로파일러 제조를 위한 통전 소결방법 및장치
JPH1046211A (ja) 中子を用いた加圧焼結法
RU2101137C1 (ru) Способ изготовления двухслойных втулок
RU2043870C1 (ru) Способ изготовления твердосплавного инструмента
JPH05320717A (ja) 粉末冶金法による異組成複合焼結体の製法
RU2049655C1 (ru) Способ изготовления алмазного инструмента
SU1581491A1 (ru) Способ изготовлени твердосплавных матриц

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 98811333.3

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): CH CN DE JP KR US

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 09548433

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1020007009838

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 1020007009838

Country of ref document: KR

RET De translation (de og part 6b)

Ref document number: 19882877

Country of ref document: DE

Date of ref document: 20010621

WWE Wipo information: entry into national phase

Ref document number: 19882877

Country of ref document: DE

WWG Wipo information: grant in national office

Ref document number: 1020007009838

Country of ref document: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8607